252765012555 has 48 divisors (see below), whose sum is σ = 478158460416. Its totient is φ = 122500733760.

The previous prime is 252765012553. The next prime is 252765012583. The reversal of 252765012555 is 555210567252.

252765012555 is a `hidden beast` number, since 2 + 5 + 2 + 76 + 501 + 25 + 55 = 666.

252765012555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252765012555 - 2¹ = 252765012553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 252765012555.

It is not an unprimeable number, because it can be changed into a prime (252765012553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1072444 + ... + 1286726.

It is an arithmetic number, because the mean of its divisors is an integer number (9961634592).

Almost surely, 2^252765012555 is an apocalyptic number.

252765012555 is a deficient number, since it is larger than the sum of its proper divisors (225393447861).

252765012555 is a wasteful number, since it uses less digits than its factorization.

252765012555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216688 (or 216685 counting only the distinct ones).

The product of its (nonzero) digits is 1050000, while the sum is 45.

The spelling of 252765012555 in words is "two hundred fifty-two billion, seven hundred sixty-five million, twelve thousand, five hundred fifty-five".